Accession Number : ADA308860

Title :   A Coastal Processes Model Based on Time-Domain Boussinesq Equations.

Descriptive Note : Research rept.,

Corporate Author : DELAWARE UNIV NEWARK CENTER FOR APPLIED COASTAL RESEARCH

Personal Author(s) : Wei, Ge ; Kirby, James T.

PDF Url : ADA308860

Report Date : APR 1996

Pagination or Media Count : 15

Abstract : Based on time domain Boussinesq equations, a comprehensive model is constructed to simulate wave shoaling, wave breaking and wave runup in coastal regions. To illustrate the accuracy of various forms of Boussinesq models for large effect of nonlinearity, solitary wave solutions corresponding to several height to depth ratios are obtained numerically. Comparisons of permanent solutions are made between Boussinesq models and other existing closed form expressions. Additional energy dissipation terms are included in the Boussinesq equations to account for the effects of wave breaking and bottom friction, which play an important role for wave transformation in surf zone and swash zone areas. Model results model are compared to data from a laboratory study of random wave breaking over a constant slope (Mase and Kirby, 1992). Good agreement between numerical results and experimental data is found.

Descriptors :   *EQUATIONS OF MOTION, *SURF, EXPERIMENTAL DATA, COASTAL REGIONS, ENERGY, NUMERICAL ANALYSIS, DISSIPATION, DEPTH, TRANSFORMATIONS(MATHEMATICS), SLOPE, NONLINEAR ANALYSIS, FRICTION, TIME DOMAIN, OCEAN MODELS, HEIGHT.

Subject Categories : Physical and Dynamic Oceanography

Distribution Statement : APPROVED FOR PUBLIC RELEASE